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2160022
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Information
Patent Grant
2160022
References
Source
Patent Number
2,160,022
Date Filed
Not available
Date Issued
Tuesday, May 30, 1939
85 years ago
CPC
H01J29/16 - Incandescent screens
US Classifications
313 - Electric lamp and discharge devices
250 - Radiant energy
252 - Compositions
264 - Plastic and nonmetallic article shaping or treating: processes
427 - Coating processes
445 - Electric lamp or space discharge component or device manufacturing
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